1997 Mankins NASA SPS Fresh Look

Figures 6-30 which follows provides the details of Case 4 sensitivities to the variations in In-Space Transportation costs that would result from the implementation of a government-sponsored large-scale solar electric propulsion systems (SEPS) development - such as a “Solar Clipper” Program Figure 6-30IRR & Cost to First Power Sensitivity to Solar Clipper Program

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